The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness

@article{Giesbrecht2010TheCO,
  title={The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness},
  author={T. Giesbrecht and J. Rycroft and M. Rowson and E. D. de Bruin},
  journal={Nutritional Neuroscience},
  year={2010},
  volume={13},
  pages={283 - 290}
}
  • T. Giesbrecht, J. Rycroft, +1 author E. D. de Bruin
  • Published 2010
  • Psychology, Medicine
  • Nutritional Neuroscience
    • Abstract The non-proteinic amino acid L-theanine and caffeine, a methylxanthine derivative, are naturally occurring ingredients in tea. The present study investigated the effect of a combination of 97 mg L-theanine and 40 mg caffeine as compared to placebo treatment on cognitive performance, alertness, blood pressure, and heart rate in a sample of young adults (n = 44). Cognitive performance, self-reported mood, blood pressure, and heart rate were measured before L-theanine and caffeine… CONTINUE READING
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